Ejection mechanism for metal forming presses



Aug. 21, 1956 A. F. BAUER ETAL 3 Sheets-Sheet l EJECTION MECHANISM FORMETAL-FORMING PRESSES Filed Nov. 25, 1952 l 1 ll fl t I I i I I 1 \h a"l A m I I I 4 l VIII/l, O

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CHHRLES ac VB L NTLOL BY? E ATTORNEY Aug. 21, 1956 A. F. BAUER EIAL2,759,380

EJECTIQN MECHANISM FOR METAL FORMING PRESSES Filed NOV. 25, 1952 5Sheets-Sheet 2 66 INVENTOR HLFRED F. BQUEP CHQRLE PHCK BY ATTO R N EY g-1956 A. F. BAUER ETAL EJECTION MECHANISM FOR METAL FORMING PRESSES FiledNov. 25, 1952 3 Sheets-Sheet 3 w wt INVENTOR FILFRED E BAUER BY CHHRLEPAC ATTORNEY United States Patent EJ'ECTION MECHANISM FOR METAL FORMINGPRESSES Alfred F. Bauer and Charles Pack, Toledo, Ohio, assignors, bymesne assignments, to National Lead Company, New York, N. Y., acorporation of New Jersey Application November 25, 1952, Serial No.322,404 Claims. ((11. 78-18) This invention relates to metal formingpresses, especially forging presses, and more particularly to ejectionmechanism for the same.

For certain purposes it is required that a piece be forged rather thandie cast because of improvement in characteristics resulting from theforging operation itself. For this purpose a metal slug of properdimension may be preliminarily heated and then placed in the cavity of adie which may be closed, following which the slug may be shaped by aforging ram moved into the die cavity under enormous pressure. In thisway the piece may be forged to final dimension in a single step, butdifficulty may arise in securing dependable and easy removal of theforged piece from the die cavity. By withdrawing the forging ram beforeopening the die the piece may be kept with the movable or ejectorportion of the die. By then moving an ejector, which in most cases mayact also as a core, the piece may be forced from the movable die.However, because of the enormous pressure under which the piece wasformed, and because of shrinkage, it may be difiicult to dislodge theforged piece from the ejector, and one specific object of the presentinvention is to facilitate this.

Heretofore the surfaces of the forged piece have been given asubstantial taper in order to insure removal of the piece from the die.Thus cylindrical surfaces have been made conical with a taper of from 3%to 7% This has increased the work and expense of machining the forgedpiece to final dimension. A further object of the present invention isto overcome this difiiculty, and to make it possible to formsubstantially cylindrical surfaces in a forged blank when cylindricalsurfaces are desired.

Still another object of the invention is to facilitate discharge of thefinished piece from the press. For this purpose I provide an inclinedchute which automatically moves into position beneath the forged piecewhen the die is open so that the stripped piece slides down the chuteand out of the press.

A still further object of the invention is to provide means forautomatically operating the parts of the press and ejection mechanism inproper timed sequence.

Still another object of the invention is to provide ejection mechanismparticularly well adapted for use with a forging press of the typedisclosed in a co-pending application of the same inventors, Serial No.322,456, filed on even date herewith, and making use of preferably castslugs of a non-ferrous alloy, specifically, aluminum, magnesium, brass,bronze, or zinc, as disclosed in copending application of the sameinventors, Serial No. 315,128, filed October 16, 1952.

To accomplish the foregoing objects, and other more specific objectswhich will hereinafter appear, the invention resides in the ejectionmechanism and forging press elements, and their relation one to another,as are hereinafter more particularly described in the followingspecification. The specification is accompanied by drawings, in which:

Fig. 1 is a fragmentary section through a closed die housing the slugwhich is to be forged;

Fig. 2 is a schematic section showing the parts after the forging step;

Fig. 3 is a section through the movable die after ejection, and afterstripping;

Fig. 4 is a fragmentary section similar to Fig. 1, but showing theforging of a piece of different shape;

Fig. 5 is a fragmentary section after the forging operation;

Fig. 6 is a fragmentary section after ejection and prior to shipping;

Fig. 7 is a diagrammatic view showing a press embc-dying the automaticejection mechanism and arranged for automatic operation;

Fig. 8 is a section in elevation taken through the die and ejectionmechanism of a forging press, embodying features of my invention;

Fig. 9 is a fragmentary section taken in elevation in the plane of theline 99 of Fig. 8 to show the ejector mechanism;

Fig. 10 is a fragmentary section at the die cavity after closing of thedie;

Fig. 11 is a section similar to Fig. 8, but following the forging step;

Fig. 12 is a similar view, but after ejection and prior to insertion ofthe stripper and chute;

Fig. 13 is a similar section after insertion of the stripper and chute;

Fig. 14 is a fragmentary section after stripping;

Fig. 15 is a section taken approximately in the plane of the line 15-15of Fig. 8; and

Fig. 16 is a plan view of the end portion of the stripper.

Referring to the drawing, and more particularly to Fig. 1, a slug 14 isinserted in a die cavity 12 while the die is open. The slug is made of adesired metal, say aluminum, and is heated to a suitable temperaturewhich, of course, depends on the particular alloy to be forged, for ifthe temperature is too low the forged piece may have minute cracks orfissures, and if the temperature is too high there may be partiallymolten components with such ready flow of metal as to lose the desiredbenefit of the forging operation with its accompanying elongation ofgrain or crystal structure. However, some metals may be forged at roomtemperature.

The die is then closed, following which a forging ram 16 is raised underenormous pressure. This deforms the piece to a desired shape,illustrated in Fig. 2, which, in the present case, is somewhat like twocups arranged back to back. The forging ram 16 acts as a lower core toform the lower cavity, while the upper cavity is formed by a core 18which acts also as an ejector. During the forging operation the core 18is preferably solidly backed, as indicated at 20, in order to withstandthe enormous forging pressure. The slug 14 is made slightly greater involume than the metal needed for the forged piece, resulting in someflash 22 at the parting face of the die, and the die is preferablyprovided with an overflow channel 24 to receive excess flash. The upwardmotion of the forging ram 16 is positively stopped by suitable outsidestops, not shown, to insure dimensional accuracy of the forged piece.

After the forging operation the forging ram 16 is withdrawn, and the diethen opened. Because of the withdrawal of the forging ram, and becauseof the configuration of the piece, it remains with the upper die portion26. By operating the pinion 28 and rack 30 the ejector core 18 moves thepiece to the position shown in Fig. 3, following which a plate 32 may beinserted, as shown, between the forged piece 34 and the die 26. It willbe evident that by reversing the pinion 28 and so retracting the ejector18, the piece 34 will be forcibly stripped from the ejector, as shown,and in accordance with a further feature of the invention, an inclinedchute 36 is moved beneath the forged piece 34 at the same time that thestripper 32 is inserted. The stripped piece falls on to the chute andslides out of the press.

In Fig. 3 it will be seen that the stripper 32 bears against a shoulder38 on the forged piece. It so happens that the particular part thereshown requires a ledge at 38, and this ledge is used in the strippingoperation. However, it is not essential that the forged piece have sucha ledge, and referring to Figs. 4, and 6 I there show the forging of apart which is generally conically shaped and which is stripped with theaid of the flash. In Fig. 4 a slug 40 has been placed in a cavity 42formed largely by increased withdrawal of the forging ram 44. In thecase of a conically shaped piece the diameter of the forging ram may beintentionally increased, if desired, to facilitate reception of a slugof desired proportion, and there is accordingly flexibility of designboth as to the diameter and the axial length of the slug.

In Fig. 5 the forging ram 44 has been raised and the slug has beendeformed to produce a forged piece 46 with flash at 48. In Fig. 6 theejector core 50 has been advanced and a stripper 52 has been insertedbetween the flash 48 and the upper die portion 54.

In the particular piece here shown there are steps or shoulders at 56and at 58, and either of these might be used for the strippingoperation, but in that case the motion of the ejector 50 would have tobe far greater than the motion required when using the flash 48, as hereshown.

One preferred mechanical arrangement of the ejection mechanism is shownin Figs. 8 and 9 of the drawing, and subsequent stages in the operationof the same are shown in Figs. through 14. Referring first to Fig. 9',it will be seen that pinion 28 meshing with rack 30 is itself actuatedby a rack 60 connected at 62 to the double acting piston in an hydrauliccylinder 64, the latter being mounted on the ejector portion 66 ofejector die 68 by means of appropriate brackets 70. It will beunderstood that the pinion 28 is longer in axial direction so as to meshwith both the vertical rack 30 and the horizontal rack 60, these beingdisplaced sidewardly, as indicated in Fig. 8.

It will also be seen from Fig. 8 that the rack 60- may be guided betweenthe die parts 66 and 68. The pinion 28 may be inserted and housed inaccordance with common practice. It will be understood that one mainreason the ejector is operated somewhat indirectly as shown is in orderto avoid need for connection to the upper end of the ejector, so thatthe latter can be solidly backed, with its reaction taken by the head ofthe press in order to successfully withstand the enormous force exertedby the forging ram. There is no need for the pinion and rack mechanismto withstand any of the forging pressure.

Referring now to Figs. 8, and 16, the die 68 also carries guide rails72, which in turn carry a cylinder 74. This carries a piston, the pistonrod of which is connected to a slide 76 which moves along the guiderails 72. The slide 76 may be formed integrally with or carries a plateor stripper 80, and in the present case the forward end of this isslotted at 82 to form a bifurcation dimensioned to fit around a part ofthe forged piece when moved to a position straddling the axis of theejector.

The slide 76 also has secured thereto depending supports 84 from which apair of spaced arms 86 extend inward beneath but spaced from thestripper 80. At their forward ends the arms 86 carry the upper end 88'of a discharge chute 90, and the connection therebetween is preferably apivotal connection, as indicated at 92 in Fig. 8.

The lower portion of chute 90 has secured therebeneath one or more guiderails 94 received in one or more guide Wheels 96 rotatably supported at98 Oman" 4 arm projecting outwardly from and secured to the stationaryhead of the press. This arm is not shown but its function is indicatedby the dot-and-dash line 100.

The operation of the parts may be explained with reference to thesuccessive figures of the drawing. In Fig. 8 the movable die 68 has beenraised, thereby exposing the die cavity. A heated slug of metal 102 isplaced in the open die cavity. The movable die 68 then descends, therebyclosing the die as shown in fragmentary Fig. 10, following which theforging ram 104 is raised under enormous pressure, adequate to easilysqueeze and deform the slug into the desired double cup shape, as shownin Fig. 11. It will be noted that piston 74 and associated parts descendwith the movable die 68, thus v with the movable die 68. The ejectorcore 106 is then tapers heretofore thought necessary in a forging die.

advanced by actuation of the gear rack 60 as previously described inconnection with Fig. 9, thus forcing the forged piece 108 out of the die68 as shown in Fig. 12. However, at this time the forged piece wouldstill adhere strongly to the ejector core.

The cylinder 74 is now activated to move the slide 76 inward, as shownin Fig 13, and it will be seen that the stripper is moved to a positionbetween a shoulder on the forged piece 108 and the die 68. At the sametime the inner end of the chute is moved with the stripper to. aposition beneath the forged piece. At this time the chute is in anangular position such that the dislodged piece will slide readily downthe chute.

In Fig. 14 the ejector core 106 has been retracted, thereby forciblystripping the forged piece 108 from the ejector core so that it fallsgravitationally onto the chute 90 and thence out of the press.

The final step in the operation corresponds to the position of the partsshown in Fig. 8, that is, the cylinder 74 is again activated to removethe stripper and chute from between the upper and lower parts of thedie, thus clearing the way for the beginning of another complete cycle,for which purpose another heated slug is put into the lower die cavitypreparatory to closing of the die.

Reverting now to Fig. 10, this figure shows a slight working ordeformation of the slug 102 prior to operation of the main forging ram104. In other words, the closing of the die has itself initiated somedeformation of the metal because the axial height of the slug isslightly greater than the axial spacing between the ejector core 106 andthe forging ram 104. However, in the main it is preferred to close thedie without deforming the slug, that is, the shape and dimension of theslug is so selected in relation to the die cavity as to be received inthe cavity when the die is closed, as shown in Figs. 1 and 4, in whichcase all working of the metal is performed in a closed die by means ofthe forging ram. This is of particular advantage in making it possibleto use a forging press in which the die is closed by a togglearrangement as described in the co-pending application Serial No.322,456 previously referred to. The use of toggle mechanism. results ingreat economy of power in that the operating cylinder may be small indiameter, but with toggle mechanism the main die closing force isexerted only at the instant of closing of the die and not over a longstroke.

One of the important features of the present invention is that it makesit unnecessary to provide the substantial In the forgedpiece 34 shown inFig. 3 it willbe seen that there are three cylindrical surfaces 110, 112and 114,

and one tapered or frusto-conical surface 116. It happens that the piecethere shown requires a frusto-conical surface, and the die cavity hasbeen oriented to take advantage of the desired taper. However, in priorpractice the three cylindrical surfaces shown would also have been givena substantial taper, the prevailing practice being to use a taper of atleast 3% and ranging up to 7%. With the present invention, however,these surfaces may be made substantially cylindrical, thus greatlyreducing the amount of machining needed later to finish the piece. Thesurface 112 may be made cylindrical because the forging ram is withdrawnunder power while the forged piece is confined in the die. The surface114 may be made cylindrical because the forged piece is ejected underpower by the ejector core. The surface 110 may be made cylindricalbecause the forged piece is stripped from the ejector core under power.

Considering next the forged piece shown in Fig. 6, the conical surfacesthere shown have been made conical because that is the intended shape ofthe piece. However, the surfaces at 118, 119 and 120 are substantiallycylindrical, but in accordance with the prior practice would have beengiven a large taper, say 3 to 7%.

In the case of the forged piece 108 shown in Fig. 14, all of thesurfaces shown are substantially cylindrical, although in practice moretaper might be provided at the surface 122. Because the upper part ofthe piece is confined both inside and outside, while the lower part ofthe piece, after withdrawal of the forging ram, is confined only on theoutside, it may be anticipated that the piece will remain with the upperdie when the die is opened. The die may be designed with that in mind,but in the event that difliculty should arise with an occasional pieceremaining in the lower die, it is an easy matter to then provide moretaper at the surface 122.

The automatic operation of the press is schematically illustrated inFig. 7 of the drawing, referring to which the stationary die 124 ismounted on the stationary head 126, while the movable die 128 is mountedon movable head 130, the latter being moved by a die closing cylinder132. In the drawing this is shown as a large diameter, double-acting,direct-acting cylinder, but in practice it may be a small diametercylinder working on the movable head 130 through toggle mechanism, asdisclosed in co-pending application Serial No. 322,456 aforesaid.

The forging ram 134 is operated by a large diameter cylinder 136disposed beneath stationary head 126. This has been shown as adouble-acting cylinder, but it may be a large diameter, single-actingcylinder with a reentrant small diameter, single-acting cylinder fordownward or withdrawal movement, as is also disclosed in co-pendingapplication Serial No. 322,456 aforesaid. The stripper 138 and chute 140are operated by cylinder 142, and the ejector is operated by cylinder144, both cylinders being attached to and movable with the die 128.Cylinders 142 and 144 have, for simplicity, been shown in the sameplane, but in practice may be at right angles, as was described inconnection with Figs. 8 and 9.

All cylinders are connected by suitable supply pipes to a main valve box150. This may contain a timing shaft or cam shaft driven by a suitabletiming motor schematically indicated at 152. The motor may be started bymeans of a starting button 154, following which the cycle shaft isturned through one complete revolution corresponding to one completecycle of operation of the press. It will be understood that the cams areso related on the timing shaft as to operate the parts of the press indesired sequence, specifically, to first close the die, to then forgethe blank, to then withdraw the forging ram, following which the die isopened. With the die open, or during the latter part of the die openingmovement, the forged piece is ejected, and thereafter the stripper andchute are inserted. These steps may be overlapped somewhat to speed thepress operation, that is, the ejection step may take place during theopening of the die after the die has partially opened, and the insertionof the stripper may take place during the latter part of the opening ofthe die, provided that ejection has already taken place. This economy intime is one of the advantages of mounting the cylinders 142 and 144 onthe movable die for movement therewith.

Immediately upon insertion of the stripper the ejector may be retracted,with consequent stripping and discharge of the forged piece, whereuponthe stripper and chute may be removed from beneath the upper die. Bycomparison of Figs. 12 and 13 of the drawing it will be seen that theslope of the chute is increased as the chute moves out of the press, sothat even if there were any delay in discharge of the forged piece, itis nevertheless accelerated and dislodged by the outward movement of thechute, as well as by being subjected to a steeper chute angle.

In practice the cylinder 142 (Fig. 7) may be air operated, for there isno appreciable load, while the cylinders 132 and 136 and 134 arepreferably hydraulically operated. It will also be understood thatcertain expedients Well known in the art may be resorted to, althoughnot shown in Fig. 7. For example, the hydraulic valves are frequentlythemselves air operated, and thus the cycle timing cam shaft may work onair valves, which in turn control hydraulic valves. Moreover, if anelectrical system is desired it is common to employ solenoid operatedair valves, in which case the timing shaft need control only electricalswitches, which in turn control solenoid air valves, which in turncontrol hydraulic valves. Moreover, as is already known to those skilledin the art, certain steps in the operation may be interlocked andcontrolled by one another, as, for example, by using microswitches aslimit switches, the closing of the die may operate a microswitch toinitiate the operation of the forging ram. Opening of the die mayoperate a microswitch and thereby initiate ejection, and similarly,completion of ejection may operate a microswitch and thereby initiatedinsertion of the stripper, and so on. Such an arrangement is merely analternative way of accomplishing the desired and above describedsequence of operation, which is the important thing.

The parting face of the die and the resulting fin or flash arepreferably located at the largest diameter of the piece, as shown inFigs. 3, 6 and 14. Thus the flash is easily removed by a separatetrimming operation in a suitable trimming die, following which theforged piece may be finished by appropriate machining operations, as,for example, to form internal or external threads.

By use of the present invention a slug of an aluminum alloy containingsome copper and silicon may be employed. This results in a forged piecehaving greater strength than when using substantially pure aluminum.Such a slug is preferably forged after heating, but this does notintroduce difficulty such as arises with hot forging of steel, for thealuminum alloy slug may be forged at a relatively low temperature, say700 to 800 R, which does not introduce any serious problem of scaling oroxidation. The invention may be used with all forgeable alloys, some ofwhich may be forged cold, and others of which may require a highertemperature than the aluminum alloy.

The slug is preferably lubricated, as by daubing it with a mixture ofoil and graphite, just before the forging step.

It is believed that the construction and operation of the presentimproved ejection mechanism for metal forming presses, as well as theadvantages thereof, will be apparent from the foregoing detaileddescription. It will also be apparent that while the invention has beenshown and described in a preferred form, many changes may be made withinthe scope of the invention, as sought to be defined in the followingclaims.

We claim:

1. A forging press comprising a stationary head carrying a stationarydie, a movable head carrying a movable die for movement toward and awayfrom the stationary die, an ejector movable through said movable die andforming therewith an upper die surface to forge a piece larger than thecross-section of said ejector, said ejector being so shaped that it willretain the article thereon, operative means actuable to advance theejector to remove the article from the surrounding die and hold it inspaced relation thereto, a stripper slidable along the parting face ofthe movable die when open into the space between the forged piece heldby the ejector and the movable die, means to so advance the stripper,and the aforesaid operative means being operable to retract the ejector,whereby said forged piece is stripped from the ejector by said stripper.

2. A forging press comprising a stationary head carrying a stationarydie, a movable head carrying a movable die for movement toward and awayfrom the stationary die, an ejector movable through said movable die andforming therewith an upper die surface to forge a piece larger than thecross-section of said ejector, said ejector being so shaped that it willretain the article thereon, operative means actuable to advance theejector to remove the article from the surrounding die and hold it inspaced relation thereto, a stripper slidable along the parting face ofthe movable die when open into the space between the forged piece heldby the ejector and the movable die, means to so advance the stripper,the aforesaid operative means being operable to retract the ejector,whereby said forged piece is stripped from the ejector by said stripper,and a discharge chute the upper end of which is connected to and movablewith the stripper.

3. A forging press comprising a stationary head carrying a stationarydie, a movable head carrying a movable die for movement toward and awayfrom the stationary die, an ejector movable through said movable die andforming therewith an upper die surface to forge a piece larger than thecross-section of said ejector, said ejector being so shaped that it willretain the article thereon, operative means actuable to advance theejector to remove the article from the surrounding die and hold it inspaced relation thereto, a stripper slidable along the parting face ofthe movable die when open into the space between the forged piece heldby the ejector and the movable die, means to so advance the stripper,the aforesaid operative means being operable to retract the ejector,whereby said forged piece is stripped by said stripper, a guide rollersupported at one side of the stationary head, and an inclined dischargechute the upper end of which is pivotally connected to and movable withthe stripper, and the lower end of which rests on said guide roller,whereby the chute is moved in to a position beneath the formed piecewhen the stripper is inserted, and whereby the chute is moved outwardand its inclination steepened when the stripper is removed from itsposition between the stationary and movable dies.

4. A forging press comprising a stationary head carrying a stationarydie, a movable head carrying a movable die for movement toward and awayfrom the stationary die, a combined core and ejector movable throughsaid movable die and forming therewith an upper die surface to forge apiece larger than the cross-section of said ejector, said ejector beingso shaped that it will retain the article thereon, operative meansactuable to advance the ejector to remove the article from thesurrounding die and hold it in spaced relation thereto, a bifurcatedstripper slidable along the parting face of the movable die when openinto the space between the forged piece held by the ejector and themovable die and straddling the axis of the ejector, means to so advancethe stripper, and the aforesaid operative means being operable toretract the ejector, whereby said forged piece is stripped by saidstripper.

5. A forging press comprising a stationary head carry ing a stationarydie, a movable head carrying a movable die for movement toward and awayfrom the stationary die, a combined core and ejector movable throughsaid movable. die and forming therewith an upper die, surface to forge apiece larger than the cross-section of said ejector, said ejector beingso shaped that it will retain the article thereon, operative meansactuable to advance the ejector to remove the article from thesurrounding die and hold it in spaced relation thereto, a bifurcatedstripper slidable along the parting face of the movable die when openinto the space between the forged piece held by the ejector and themovable die and straddlingthe axis of the ejector, means to so advancethe stripper, the aforesaid operative means being operable to retractthe ejector, whereby said forged piece is stripped by said stripper, anda discharge chute the upper end of which is connected to and movablewith the stripper.

6. A forging press comprising a'stationary head carrying a stationarydie, a movable head carrying a movable die for movement toward and awayfrom the stationary die, a combined core and ejector movable throughsaid movable die and forming therewith an upper die surface to forge apiece larger than the cross-section of said ejector, said ejector beingso shaped that it will retain the article thereon, operative meansactuable to advance the ejector to remove the article from thesurrounding die and hold it in spaced relation thereto, a bifurcated.

stripper slidable along the parting face of the movable die when openinto the space between the forged piece held by the ejector and themovable die and straddling the axis of the ejector, means to so advancethe stripper, the aforesaid operative means being operable to retractthe ejector, whereby said forged piece is stripped by said stripper, aguide roller supported at one side of the stationary head, and aninclined discharge chute the upper end of which is pivotally connectedto and movable with the stripper, and the lower end of which rests onsaid guide roller, whereby the chute is moved into a position beneaththe formed piece when the stripper is inserted, and whereby the chute ismoved outward and its inclination steepened when the stripper is removedfrom its position between the stationary and movable dies.

7. A forging press comprising a stationary head carrying a stationarydie, a forging ram movable through the stationary die, means to ram orwithdraw the forging ram, a movable head carrying a movable die formovement toward and away from the stationary die, an ejector movablethrough said movable die and forming therewith an upper die surface toforge a piece larger than the cross-section of said ejector, saidejector being so shaped that it will retain the article thereon,operative means actuable to advance the ejector to remove the articlefrom the surrounding die and hold it in spaced relation thereto, astripper slidable along the parting face of the movable die when openinto the space between the forged piece held by the ejector and themovable die, means to so advance the stripper, and the aforesaidoperative means being operable to retract the ejector, whereby saidforged piece is stripped from the ejector by said stripper.

8. A forging press comprising a stationary head carrying a stationarydie, a forging ram movable through the stationary die, means to ram orwithdraw the forging ram, a movable head carrying a movable die formovement toward and away from the stationary die, an ejector movablethrough said movable die and forming therewith the upper die surface toforge a piece larger than the cross-section of said ejector, saidejector being so shaped that it will retain the article thereon,operative means actuable to advance the ejector to remove the anticlefrom the surrounding die and hold it in spaced relation thereto, astripper slidable along the parting face of the movable die when openinto the space between the forged piece held by the ejector and themovable die, means to so advance the stripper, the aforesaid operativemeans being operable to retract the ejector, whereby said forged pieceis stripped from the ejector by said stripper, and a discharge chute theupper end of which is connected to and movable with the stripper.

9. A forging press comprising a stationary head carrying a stationarydie, a forging ram movable through the stationary die, means to ram orwithdraw the forging ram, a movable head carrying a movable die formovement toward and away from the stationary die, an ejector movablethrough said movable die and forming therewith an upper die surface toforge a piece larger than the cross-section of said ejector, saidejector being so shaped that it will retain the article thereon,operative means actuable to advance the ejector to remove the anticlefrom the surrounding die and hold it in spaced relation thereto, astripper slidable along the parting face of the movable die when openinto the space between the forged piece held by the ejector and themovable die, means to so advance the stripper, the aforesaid operativemeans being operable to retract the ejector, whereby said forged pieceis stripped by said stripper, a guide roller supported at one side ofthe stationary head, and an inclined discharge chute the upper end ofwhich is pivotally connected to and movable with the stripper, and thelower end of which rests on said guide roller, whereby the chute ismoved in to a position be neath the formed piece when the stripper isinserted, and

vwhereby the chute is moved outward and its inclination steepened whenthe stripper is removed from its position between the stationary andmovable dies.

10. A forging press comprising a stationary head carrying a stationarydie, a fiorging ram movable through the stationary die, means to ram orwithdraw the forging ram, a movable head carrying a movable die formovement toward and away from the stationary die, a combined core andejector movable through said movable die and forming therewith an upperdie surface to forge a piece larger than the cross-section of saidejector, said ejector being so shaped that it will retain the articlethereon, operative means actuable to advance the ejector to remove thearticle from the surrounding die and hold it in spaced relation thereto,a bifurcated stripper slidable along the parting face of the movable diewhen open into the space between the forged piece held by the ejectorand the movable die and straddling the axis of the ejector, means to soadvance the stripper, and the aforesaid operative means being operableto retract the ejector, whereby said forged piece is stripped by saidstripper.

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